<!DOCTYPE html>
<html>
 <head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>Percentage margin on inlines ignored in presence of certain characters in source</title>
  <style type="text/css">
#test {
	border: 1px solid #000;
	width: 500px;
}
#test span {
	border: 1px solid #f00;
	margin: 0 10%;
}
  </style>
 </head>
 <body>
  <div id="test"><span>one</span><span>two</span></div>
 </body>
</html>